Gauging device



Sept. 9 l 924.

. 8 LL E H J. M DONOUGH GAUGING DEVICE Filed Anril 1O 1922 2 Sheets-Sheet l JOhIZM DOIZOZZ h J. M DONOUGH GAUGING DEVICE Filed April 10 1922 2 Sheets-Sheet 2 22 :5:

snxmlzxx Patented Sept. 9, 1924.

UNITED sTATes PATENT OFFICE.

a 7 JOHN McDoNoUeH, on camce, ILLINOISL, n'ss'renoa To wnsrnan a Lnc'rRro con- PANY, INCORPORATED,- on NEW YORK, N. Y., A 'oo'nroaa'riou OF NEW YORK.

'GAUGING DEVIGE.

To-QZZ whom it may concern: v i

Be it known that I, JOHN MoDoNoueH, a citizen of the United States,- residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Gauging Devices, of which the following isa full, clear, concise, and eXactdesc-ription.

This invention relates to gauging devices, and more particularly to a gauging device for alining and positioning friction rolls and clutch supporting members used in driving the brush carriages in mechanical telephone switching systems.

The'object of the invention is toprovide a gauging device which combines means by which friction rolls may be expeditiously and accurately checked for alinement upon a secondary support, the perpendicular plumbing of a secondary support upon a primarysupport forming the main frame of the machine and-the alinement of clutch supporting members with respect to each other upon the secondary support.

The gauging device in the preferred embodiment of the invention comprisesa supting member adapted to be carried by top and bottom clutch plates required to be accurately spaced with respect to each other and equipped with members, one at each end, adapted to be moved into engagement with the plates to check their position with respect to each-other: Carried upon the supportare a plurality of indicatorgauges, as-

" sociated parts of which are adaptedtobe laced by their engagement with'the pe rip cry of the friction rolls when the gauge is mounted on the clutch plates. In this position of the apparatus the indicator gauges indicate the amount of displacement of the friction rolls and also whetherth'e distance from the periphery of the rolls to dis the outside vertical face of the bottomclutch plateis within certain limits. One

" of the indicator gauges and its associated parts isadapted to indicate whether the distance from the horizontal center line of.

the top r oll to the top face of the upper clutch-platens within certain limits;

Also carried by the gauge supporting. member at'its upper end is a plumbing" means which is adaptedto .enter a cupshaped member movably supported upon the lower end of the supporting member when the cup shaped member is movedupward.

Application filtd April 10,1922. Serial No. 551,291.

If the lower end of the plumbing means does not-touch the inside of the cup shaped member when it is raised, the friction rolls and their support, are perpendicular upon the main frame of the machine within certam limlts.

In the drawings:

Figure l is a front view of thegauging device embodying the features. of the in- .vention mounted in; position for gauging upon a frietion roll drive;

Fig. 6 is a similar viewtakenupon the line 66 of Fig. 2, and Figs. 7 and 8 .are

enlarged fragmentary views of portions of F ig; 1 illustrating the scales associated with the gauging'devi'ce, I

'As shown in the drawings, only such parts or portionsfof the friction frolldrive and its primary sujpport or frame have been indicated which are necessary to a description of the gauging device. and the method of using it.

The. frict'on roll drive. frame 'iinclu'des top and bottom channel members 10 and 111 Mounted horizontally between thechannels 10-and 11 and adapted to be raisedxor lowered as a unit and to be moved laterally therebetween by, suitable adjusting means (not shown) are friction rolls 12 and 13 which are used to drive the brush carriages in mechanical telephoneswitching machines. The means for adjusting the-rollers 12 and 13 up or' down-consist of means adapted to raise or lower either end of the rolls, and the meansfor moving the roll's 'laterally' on the frame p royi de for moving the topl or lower ro'll' laterally in either direction, therebyproviding for correct alinementof the rolls in all 'dire ctionst Mounted upon and suitably securedtothe top channel 10 are -a .plurality oftop clutch locatingplates 16 16 each provided with a plurality of rectangular shapedslots indi cated at 1717 in its top face and along its front edge. (See Figs. 1 and 5). A. plurality of bottom clutch locating plates 18 18 are suitably secured upon the-top of the bottom channel 11, each equipped with a plurality of shouldered screws 1919 along a vertical face thereof. The plates 16 and 18 support a plurality of clutch members (not shown) which upon actuation cause the friction rolls to transmit motion to the brush carriages. At the lower end of its rear vertical face the clutch member is slotted to receive the shoulder on the screw 19 and upon its top and rear face and at points equa-distant from the vertical center line of the slotted lower vertical face is equipped with a pair of upwardly projecting lugs which in assembly are entered in the slots 17-17. The slotted end of the clutch member rests on the shoulder of the screw 19 while the lugs at the top project into the slots 1717. It is essential, therefore, that the vertical center line of the screw 19 should be equi-distant between two of theslots 17 before the clutch members are mounted on the clutch plates.

to the above time the plates may be loosely secured to the channels with a free movement between the securing means.

The plates 16-16 are also provided with a plurality of circular openings 21 21 at the rear of the slots 1717 and spaced on lines drawn midway between the slots 17-17 for the purpose of locating the gauge upon the friction roll drive frame. The frame of the gauging device is T-shaped and comprises a main supporting bar 24 and a top cross bar 25 suitably secured thereto and equipped with pins 26 at each end which project downward from a rearwardly projecting part thereof and positioned thereon so as to engage two of the openings 21-21 when the gauge is positioned upon the friction roll drive frame with the pins 26 resting on the top face of the channel 10. Suitably carried at the rear face of the bar 24 upon a slid member 27 and near its lower end at each side thereof and adapted to be moved vertically upon the slide 27 is a pair of plates 28 formed with hooked upper ends 29. The plates 28 are each adapted to be moved down against the action of a spring 30 hearing upward into a pocket formed in the lower end thereof. The gauge is positioned upon the friction roll drive frame by entering the pins 26 at the top thereof in the openings 21 of the plate 16 and then moving the plates 28 with the hooked ends 29 into engagement with the vertical face of the plate 18. The hooked ends 29 are formed so that there is a certain binding or wedging action between them and the vertical face of the channel 11 which acts to hold the plate 28 down against the action of the springs 30.

Mounted to slide upon the upper end of the bar 24 is a slide member 32 with two lugs 33 formed on its upper surface and at the rear thereof which are adapted to fit snugly within the slots 17-17 when the slide 32 is moved upward. A spring pressed button 34 is mounted in the rear face of the slide 32 and acts against the vertical face of the channel 10 to hold the slide 32 in position when moved upward. hen the gauge is removed from the friction roll frame the slide moves down freely.

The gauge illustrated is adapted to gauge a friction roll drive equipped with three friction rolls instead of two, as illustrated, and consequently the bar 24 is long enough for the slide 27 to be moved down to vtake care of a three roll friction drive. Slidably mounted upon the slide 27 and at its rear is a feeler gauge 35, the rear face of which is in line with the vertical face of the plate 18 and is forked shaped at its upper end to straddle the shoulder on the screw 19 between the back of the screw head and the vertical face of theplate 18.

When the feeler gauge 35 has straddled the shoulder on the screw 19 and the lugs 33 have been entered correctly in the slots 17 the plates 16 and 18 are correctly positioned with respect to each other and are then ready to be firmlysecured to the channelslO and 11 respectively. 7

Positioned upon the bar 24 intermediate the slides 27 and 32 are three indicator gauges 38, 39 and 40 for indicating whether the distance from the periphery of the rolls to the outside vertical face of the bottom clutch plate 18 is within certain limits. In the drawing the gauge 40 is not being used since a two roll drive is illustrated, but in a three roll drive all three gauges will be used. Associated with indicator gauge 38 is a gauge 41 which indicates whether the distance from the horizontal center line of the top roll to the top face of the upper channel is within certain limits. Yieldably mounted upon a plate 42 which is slidably carried upon the bar 24 is a pair of U-shaped members 43 one at each side thereof. The U-shaped members 43 are secure-d to studs 44 which slide freely in sleeves 45 secured to the plate 42. Suitable springs 46 are mounted on the studs 44 and between the U-shaped members 43 and the plate 42 to hold the U-shaped members in contact with the periphery of the friction roll.

The plate 42 is provided with a scale 48 which is graduated toshow a maximum and minimum of one-siXty-fourth inch to left and right respectively of a central portion. A pointer 49 is pivoted upon the plate 42 and equipped with an arm 50 which is held in a neutral position on the scale 48 and always in engagement with a stationary pin 51 which is carried upon the normally stationary bar 24, by a spring 52 suitably mounted uponthe plate 42.

In mounting the gauge upon the friction roll frame -the" U-shaped members: 43avi'll contact with the peripheryof'the upper roll. and be held in firm contact therewith "by the springs 46.- 'Since'the members 43 are carried upon theplate 42 which is slidably carried upon ithe'bar 24, they will be moved either up "or down; depending upom the :po=

quently cause the pointer' 49 to be moved about its-pivot due to thearm 50' thereof pslit-ioned within' the maximum or mini mum limits with re'spe'ctto -thetop face-*of the upper channel, it is raised or' lowe're'd by.

' means of the?adjustable supporting 'means provided therefon' wot' shown) "until the pointer 49 indicates by its position on the sca'le 4S thatthe 'distance'ris within-the specified liin'i't's: "The gauges 38, i 39 and 40- for indicating-whether the distance froniithe periphe'ryof the rolls to the outsidevertical face of the bottom clutch plate] 18 is 'with-' in certain limits; are all identical in operat'ion andeonstructiong and. as 'sh'own Figs.

o and 4, consist of a plate 55 which" is se' curedt' the bar and formed with a horizoiitally -disposed armi56. The arm 56'i's cut back at' its 'end atl'an' angle of .approxi-l mately. 45 from the vertical and is curved in a horizontal direction. The angularface of the arm 56 is equippedwith a scale 57 which is graduated to show a maximum and minimum of .008 inch to the left and right respectively of a central portion. Silidably carried within a bearing sleeve 58 secured in the bar 24 and passing through a suit able opening formed in the plate 55 is a pin 59.

The pin 59 is mounted on the bar '24 in alinement with'the horizontal center line of the friction roll and is equipped wlth a head 61 which is adapted to be held in contact with the periphery of the roll when the gauge is mounted upon the friction roll frame. Suitably pivoted to a vertically disposed wall 62 formed on the plate 55 and below the arm 56 thereof is a lever 63 equipped with a long arm 64 and a short arm 65. The short arm 65-is adapted to en-' gage the tapered end of thepin 59 which projects through the plate 55 a suitable-distance and is equipped with a pin 68 which A v the engagement of said movable elements limits its movement. v

Pivotally and centrally disposed upon the upper face ofthe arm 56 is a pointer 69 equipped with a long arm 70 and a short arm 71 at right angles thereto. The pointer 69 is turned down at its end over the angular position-onthe scale57 by aispring i7i4suit-= ably mounted "on the upper face of the arm 56'." ne end of the spring 714 iengagesjthe long 70 0f the"pointer"69f The 'spring- 74- i's adaptedto keep {the sliort'iarm 7 1 always in engagement with "the long arm 64 of thelever 63when' thegauge is in position; Q When the gau'ge 'is' mountedupon the frame the displacement; of j the pin 59; caused, by the-"distance from the periphery of the rolls tofitlie outside vertical mace of the bottom} clutch plat'e 18 not-ibeingwithin certain :l'im-' its; is indicated the movement of the pointer 69 eitherf'to the left OlWllght of :the

central'porti'onron the 'scal'e 57fi Theroll ror rolls arethen adjusted latery ally upon :the'fframe until .the pointer '69 indicates uponfthe scale 57 thattheiperiph ery--o:t1 e- 1: 11s is" within :plus ioriminus .2008 inchzof therequired distance from-the t me .cal face of the bottom olutchplate'l The :m'eanstzfor;checking'sthe ip'erpendicu lar position "ofithe i'fri'ction {roll frame upon. the:main'zframe is*used onlyiafter the rolls and clutch -gplates have been 1 properly est tionedxupoia itlre zfriction aroll :afra -mel and consi's'ts 'of' a plumb line "andwbob .78" iwhich' ais suitably r'suspended from the 5'cross*rbar 25 (lithe ez' M6unted atithe lowerendof the 'bar 24:is' an arm Z9 and mounted i -loosely thereon .l in? a verti cal .zdir'ectio'n, is: a: :pin 8.0. Secured. to the 'iupper.iend of :the pin is a euptshaped inembetiSlrarid .at itsil'owerlendis ?a knurled .head 8'2. j1hemenibers'Sl is normally held down against the top of the arm 79 by a spring 83 mounted on the pin head 82.. The plumb line and bob are in a 80 between the bottom of the arm 79 and the vertical alinement with the cup shaped mem-' ber 81 and the lower end of the bob is formed with a projection 84 which is circular in cross. section. 2 To check the perpendicular position of the friction roll frame upon the main frame the cup shaped member 'is'raised by pressing upward on the head 82 and if the wall of the opening in the member 81 does not contact with the projection 84 on the bob the friction roll drive frame is per-.

pendicular upon the main frame of the a machine within certain required limits What is claimed is:

1. A'device for checking the position of 1 one member with relation toanother member, comprising a supporting element adapt- I ed to be removablyv secured to one of themembers, elements movably carried-by said supporting element and adapted to engage the other member, and meansactuated by with said member to be checked for indicating the position thereof withrelation to the edto "be removably secured to one of the members, elements movably carried by said supporting .elementgand adapted to engage ments movable in a direction at an angle to the otherelement, and'means actuated by the engagement of said movable elements with said member to be checked for indicating the position thereof with relation to the other member. I

4. -A device for checking thevertical position of one member with relation to another member, comprising a, supporting element adapted to. be removably securedto one of the members, an element movable in different planes carried by said supporting element and adapted to engage the other member, said movable element having contacting surfaces for engaging at different points the member to be checked, and means actuated by' the engagement of said movable element with said member to be checked at the instant of securing said supporting element in position for indicating the vertical position thereof withrelation to the other member. 1 T

5. A device for checking the vertical position of one member-with relation tdan other member, comprising a supporting element adapted to be, removably secured to one of the members, an element movable in a vertical and horizontaldirection carried by said supporting element andadapted to;

be brought into engagement withthe mem-o ber to be checked at the instant of securing 7 said supporting element in position, and

meansactuated by the engagement of said movable element with said member to be checked forindicating the vertical, position thereof with relation to the othermember. .7 6. A device for checking the vertical position of amember upon its support comprising, a .supportingbar adapted to be re-. 55

movably secured to the support, amember yieldable in a vertical. and horizontal direc tion carried upon said supporting bar and adapted to be brought into engagement with the member tobe checked-at the instance of securing the supporting bar in position, and means assoclated with sald .yieldable -member for indicating whether the memberieh gaged by said yieldable member is-posi-' tione'd vertically upon its" support' within 1 certain limits. 7 c I. V b

In witness whereof, Ihereuntosubscribe, my'name this 7th day of April A; 13,1922. 1 JOHN MODONOUGIL 

